Alternatives

Products that do what Plain Flags does

Free self hosted feature flag system

1. 1
   Flagsmith▲128

   Feature flag, remote config and AB testing platform

   2021

2. 2
   Bucket Flags▲239

   Feature flagging that's purpose-built for B2B

   2024

3. 3
   dif.sh▲364

   Markdown feature flags your coding agent installs for you

   Aug 2026 · dif.sh

4. 4
   Flags SDK by Vercel▲435

   Free, open-source library for using feature flags in Next.js

   2025

5. 5
   Vercel Flags▲207

   Feature flags, targeting rules, rollouts. All from Vercel.

   Apr 2026 · vercel.com

6. 6
   Bucket DX▲294

   Feature flags to go fast with CLI, Toolbar, Event log & more

   2025

7. 7FI
   Featureflags.io – microsite for feature flag best practices, libraries▲27

   2017 · featureflags.io

8. 8FF
   Feature Flags Backed by Git▲93

   Hey all, I'm the founder of Flipt, an open-source (https://github.com/flipt-io/flipt) feature flag tool that I (and others) have been working on for the past few years. About a year or two ago we added support for serving flag state from various non-relational declarative stores like Git, OCI, Object Store, etc. Many of our users came to love the git-backed storage, as it allows them to keep their feature flags close to their code in there organization's repos. But they had one (rather large) ask, and that was the ability to use the UI to manage flag state changes and…

   2024 · flipt.io

9. 9
   Flipt Cloud▲165

   Feature Flags. Powered by Git

   2024

10. 10
    OpenFlags▲114

    Fast, self-hosted, edge-ready feature flags for modern teams

    Mar 2026 · openflags.dev

11. 11DO
    Dorkly – Open source feature flags▲203

    Dorkly is a free open source Feature Flag backend for LaunchDarkly SDKs. It uses simple yaml files stored in GitHub as the source of truth. Full disclosure: made by a former LaunchDarkly employee + current fan.

    2024 · github.com

12. 12AS
    A self-hosted and open-source feature flags platform▲6

    2023 · github.com

13. 13FF
    FFlags – Feature flags as code, served from the edge▲42

    Hi HN, I'm the creator of FFlags. I built this because I wanted a feature flagging system that gave me the performance and reliability of an enterprise-scale solution without the months of dev time or the vendor lock-in. The core ideas are: 1. Feature Flags as Code: You define your flag logic in TypeScript. This lets you write complex rules, which felt more natural as a developer myself than using a complex UI for logic. 2. Open Standard: The platform is built on the OpenFeature standard (specifically the Remote Evaluation Protocol). The goal is to avoid vendor lock-in and the usual…

    2025 · fflags.com

14. 14
    Flipt v2▲178

    Feature flags for safe deployments, git-native & self-hosted

    Oct 2025

15. 15
    Taplytics Feature Flags▲84

    Unlimited feature flags on web, mobile, OTT and server-side

    2020

16. 161O
    100% open-source feature flags and feature management platform▲12

    2022 · github.com

17. 17AS
    A searchable list of self-hosted software with screenshots▲656

    2019 · selfhostedsource.tech

18. 18
    Feature Flag Experimentation by DevCycle▲69

    Feature Flag Experimentation made by engineers for engineers

    2022

19. 19
    Reflag▲117

    First ever self-cleaning feature flags for TypeScript

    Sep 2025

20. 20FG
    Featurevisor – Git-based feature flags and experiments management▲48

    Why? - Decouple application deployment from releases How it works: - Make changes to your features and segments (YAMLs) via Pull Requests - Generate datafile (JSON file) in CI/CD workflow and upload to your CDN - Fetch datafile in your application runtime and consume with SDKs Supports: - Feature flags: boolean flags - Experimentation: a/b tests - Segments: targeting traffic with conditions - Variables: namespaced under each feature and conditional - Gradual rollouts: avoid big bang releases, go from 0% to 100% - Consistent bucketing: same user sees same variation - Multiple…

    2023 · featurevisor.com

21. 21
    Optimizely Rollouts▲113

    Ship faster with less risk with free feature flags

    2019

22. 22
    DevCycle▲162

    Feature flag suite for modern product engineering teams

    2022

23. 23FA
    Flipt – an open-source feature flag solution▲59

    2019 · github.com

24. 24FF
    Feature flag management for feature lifecycle control▲63

    2016 · launchdarkly.com

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